local M = {}
local fn = vim.fn

M.echo = function(str)
    vim.cmd "redraw"
    vim.api.nvim_echo({ { str, "Bold" } }, true, {})
end

local function shell_call(args)
    local output = fn.system(args)
    assert(vim.v.shell_error == 0, "External call failed with error code: " .. vim.v.shell_error .. "\n" .. output)
end

M.lazy = function(install_path)
    ------------- base46 ---------------
    local lazy_path = fn.stdpath "data" .. "/lazy/base46"

    M.echo "  Compiling base46 theme to bytecode ..."

    local base46_repo = "https://github.com/NvChad/base46"
    shell_call { "git", "clone", "--depth", "1", "-b", "v2.0", base46_repo, lazy_path }
    vim.opt.rtp:prepend(lazy_path)

    require("base46").compile()

    --------- lazy.nvim ---------------
    M.echo "  Installing lazy.nvim & plugins ..."
    local repo = "https://github.com/folke/lazy.nvim.git"
    shell_call { "git", "clone", "--filter=blob:none", "--branch=stable", repo, install_path }
    vim.opt.rtp:prepend(install_path)

    -- install plugins
    require "plugins"

    -- mason packages & show post_bootstrap screen
    require "nvchad.post_install" ()
end

M.gen_chadrc_template = function()
    local path = fn.stdpath "config" .. "/lua/custom"

    if fn.isdirectory(path) ~= 1 then
        local input = fn.input "Do you want to install example custom config? (y/N): "

        if input:lower() == "y" then
            M.echo "Cloning example custom config repo..."
            shell_call { "git", "clone", "--depth", "1", "https://github.com/NvChad/example_config", path }
            fn.delete(path .. "/.git", "rf")
        else
            -- use very minimal chadrc
            fn.mkdir(path, "p")

            local file = io.open(path .. "/chadrc.lua", "w")
            if file then
                file:write "---@type ChadrcConfig\nlocal M = {}\n\nM.ui = { theme = 'onedark' }\n\nreturn M"
                file:close()
            end
        end
    end
end

return M
